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\begin{tabular}{lcc} \hline
 & (1) & (2) \\
 & Model 1 (OLS) & Model 1 (2SLS) \\
VARIABLES & GTME & GTME \\ \hline
 &  &  \\
Distance & -0.001 & 0.005 \\
 & (0.002) & (0.003) \\
Aid (ln) & -0.043 & 0.263 \\
 & (0.031) & (0.173) \\
Aid (ln)*Distance & -0.000 & -0.013** \\
 & (0.002) & (0.006) \\
City & 0.011** & 0.015*** \\
 & (0.004) & (0.005) \\
Battles & -0.013** & -0.015** \\
 & (0.005) & (0.006) \\
Elevation & 0.000 & 0.000 \\
 & (0.000) & (0.000) \\
Breaking the walls & -0.061 & -0.041 \\
 & (0.044) & (0.059) \\
Soldier's Harvest & 0.015 & 0.039 \\
 & (0.050) & (0.057) \\
Sayeed & -0.017 & 0.014 \\
 & (0.087) & (0.117) \\
Border control & 0.221*** & 0.225*** \\
 & (0.054) & (0.064) \\
Mil. supp. & 0.001 & -0.000 \\
 & (0.001) & (0.001) \\
Sunni & 0.390*** & 0.409*** \\
 & (0.032) & (0.040) \\
Shia & 0.394*** & 0.406*** \\
 & (0.036) & (0.038) \\
Kurds & 0.391*** & 0.412*** \\
 & (0.033) & (0.042) \\
Turkmen & 0.413*** & 0.447*** \\
 & (0.048) & (0.047) \\
ID\_side\_b = 2, IS & 0.122* &  \\
 & (0.069) &  \\
ID\_side\_b = 3, RJF & -0.126 &  \\
 & (0.099) &  \\
ID\_side\_b = 5, al-Mahdi Army & 0.272** &  \\
 & (0.112) &  \\
Constant & -0.189** &  \\
 & (0.094) &  \\
 &  &  \\
Observations & 3,180 & 3,180 \\
Adjusted R-squared & 0.085 & -0.005 \\
Cluster SE & YES & YES \\
Hansen J statistic & -99999 & 0.176 \\
J statistic degrees of freedom & -99999 & 2 \\
p-value of Hansen J statistic & -99999 & 0.916 \\
GMM distance test statistic of endogeneity & -99999 & 9.036 \\
p-value of GMM distance test statistic & -99999 & 0.0109 \\
 Number of ID & 55 & 55 \\ \hline
\multicolumn{3}{c}{ Robust standard errors in parentheses} \\
\multicolumn{3}{c}{ *** p$<$0.01, ** p$<$0.05, * p$<$0.1} \\
\end{tabular}
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